1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2016 Rockchip Electronics Co., Ltd. 3*4882a593Smuzhiyun * Authors: 4*4882a593Smuzhiyun * Zhiqin Wei <wzq@rock-chips.com> 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Licensed under the Apache License, Version 2.0 (the "License"); 7*4882a593Smuzhiyun * you may not use this file except in compliance with the License. 8*4882a593Smuzhiyun * You may obtain a copy of the License at 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * http://www.apache.org/licenses/LICENSE-2.0 11*4882a593Smuzhiyun * 12*4882a593Smuzhiyun * Unless required by applicable law or agreed to in writing, software 13*4882a593Smuzhiyun * distributed under the License is distributed on an "AS IS" BASIS, 14*4882a593Smuzhiyun * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15*4882a593Smuzhiyun * See the License for the specific language governing permissions and 16*4882a593Smuzhiyun * limitations under the License. 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #ifndef _LIBS_RGA_SINGLETON_H 20*4882a593Smuzhiyun #define _LIBS_RGA_SINGLETON_H 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #ifndef ANDROID 23*4882a593Smuzhiyun #include "RgaMutex.h" 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #if defined(__clang__) 26*4882a593Smuzhiyun #pragma clang diagnostic push 27*4882a593Smuzhiyun #pragma clang diagnostic ignored "-Wundefined-var-template" 28*4882a593Smuzhiyun #endif 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun template <typename TYPE> 31*4882a593Smuzhiyun class Singleton { 32*4882a593Smuzhiyun public: getInstance()33*4882a593Smuzhiyun static TYPE& getInstance() { 34*4882a593Smuzhiyun Mutex::Autolock _l(sLock); 35*4882a593Smuzhiyun TYPE* instance = sInstance; 36*4882a593Smuzhiyun if (instance == nullptr) { 37*4882a593Smuzhiyun instance = new TYPE(); 38*4882a593Smuzhiyun sInstance = instance; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun return *instance; 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun hasInstance()43*4882a593Smuzhiyun static bool hasInstance() { 44*4882a593Smuzhiyun Mutex::Autolock _l(sLock); 45*4882a593Smuzhiyun return sInstance != nullptr; 46*4882a593Smuzhiyun } 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun protected: ~Singleton()49*4882a593Smuzhiyun ~Singleton() { } Singleton()50*4882a593Smuzhiyun Singleton() { } 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun private: 53*4882a593Smuzhiyun Singleton(const Singleton&); 54*4882a593Smuzhiyun Singleton& operator = (const Singleton&); 55*4882a593Smuzhiyun static Mutex sLock; 56*4882a593Smuzhiyun static TYPE* sInstance; 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun #if defined(__clang__) 60*4882a593Smuzhiyun #pragma clang diagnostic pop 61*4882a593Smuzhiyun #endif 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #define RGA_SINGLETON_STATIC_INSTANCE(TYPE) \ 64*4882a593Smuzhiyun template<> ::Mutex \ 65*4882a593Smuzhiyun (::Singleton< TYPE >::sLock)(::Mutex::PRIVATE); \ 66*4882a593Smuzhiyun template<> TYPE* ::Singleton< TYPE >::sInstance(nullptr); /* NOLINT */ \ 67*4882a593Smuzhiyun template class ::Singleton< TYPE >; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun #endif //ANDROID 70*4882a593Smuzhiyun #endif //_LIBS_RGA_SINGLETON_H 71